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  • New member:

    Andrew Chen

    Radiology resident United States, New York

    ...

  • New member:

    Berton Hondu

    Other resident Romania,

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  • New member:

    babar sanaullah

    ,

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  • Elie Najem

    2018-11-12 03:05:02 Visible by anyone.

    Questions and Answers:

     

    1.      The most common site of intracranial calcifications in the pediatric population is:

    a.       Cerebellum

    b.      Periventricular region

    c.       Pineal gland

    d.      Thalamus

    e.       Falx cerebri

     

    Answer: c. In the pediatric population, they are typically seen in the pineal gland and choroid plexus. Pineal calcifications <1cm, appear as dots and tend to be benign in 40% of individuals less than 20 years old. Whereas pineal calcifications >1cm in patients younger than 9 years should be regarded as pathologic and warrant further investigation.

       

    2.      A blush-like pattern calcifications in the bilateral basal ganglia in a child is typically seen in:

    a.       Tuberous sclerosis

    b.      Raine syndrome

    c.       Krabbe’s disease

    d.      Sturge-Weber  syndrome

    e.       Neurofibromatosis

     

    Answer: c. Krabbe’s disease is an autosomal recessive demyelinating disorder affecting infants due to galactocerebroside b-galactosidase deficiency leading to accumulation of abnormal lipids. A symmetrical blush-like pattern of calcifications in the bilateral basal ganglia is characteristic.

     

    3.      A 3 day-old boy was admitted to the neonatal intensive care unit after an episode of tonic-clonic seizure. His mother denied prenatal care. Non-contrast CT was showed both sub-ependymal and periventricular calcifications with cerebral volume loss. What is the most likely diagnosis?

    a.       Tuberous sclerosis

    b.      Congenital CMV

    c.       Congenital hypothyroidism

    d.      Neurofibromatois

    e.       Hypoglycemia-induced seizure

     

    Answer: b. Congenital Cytomegalovirus (CMV): Incidence is 0.2-2.4% of live births. Intracranial calcifications are seen in 77% of those with imaging abnormalities typically in the sub-ependymal and periventricular regions of the brain along with brain atrophy.

       

    4.      Among all the intra-axial brain tumors, which of the following is mostly associated with intracranial calcifications?

    a.       Oligodendroglioma

    b.      Pilocytic astrocytoma

    c.       Dysembryonic neuroectodermal tumors

    d.      Medulloblastoma

    e.       Metastasis

     

    Answer: a. Oligodendrogliomas exhibit the highest frequency of calcifications (up to 90%). Calcifications can be scattered dots or clumped together to form large nodules, located centrally or peripherally and frequently in the frontal lobes.

       

    5.      A 50-year-old female patient presented with dry coughfatigue, and shortness of breath. On physical exam she has tender reddish bumps on the skin. Review of the systems revealed seizures and depression. CXR showed enlarged hilar lymph nodes and CT scan of the brain showed small calcified masses in the leptomeninges and periventricular white matter. What is the most likely diagnosis?

    a.       Hypothyroidism

    b.      Hyperparathyroidism

    c.       Hemochromatosis

    d.      Chronic lead toxicity

    e.       Sarcoidosis

     

    Answer: e. Sarcoidosis affects many organs including the CNS, lungs and skin. On non-contrast CT scan of the brain, small calcified granulomas can be seen in the leptomeninges, periventricular white matter, pons, hypothalamus, pituitary stalk, and optic chiasm with varying degrees of edema.

     

  • Michele Foresti

    2019-04-23 12:03:20 Visible by anyone.
  • Adil Omer Neuroradiology 09/24/2016

    A 4 year old male presented to the pediatric endocrinologist with global developmental delay and growth retardation. The patient’s prenatal and neonatal records were significant for a maternal histo...

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  • New member:

    Dr Surendra K L

    Radiologist India, Kerala

    ...

  • aliza decruz

    2019-07-08 02:43:17 Visible by anyone.

    We are a dedicated, hard working and professional SEO company In USA, serving thousands of clients of various categories. We have the capability, rich experience and complete knowledge of understanding your business environment and apply the right solutions and professional SEO services to bring your business website in the top positions in the search engine results.

  • New member:

    ALLAN DAVILA

    Radiologist Ecuador,

    ...

  • Radiology resident Brazil, Ceara

    ...

  • Roland Talanow

    2019-07-12 17:23:50 Visible by anyone.

    Take a vote! Help us enhance the interpretability of A.I. systems in Radiology:

     

    Artificial Intelligence (A.I.) systems are achieving remarkable performances in radiology, but at the cost of increased complexity. Hence, they become less interpretable.


    As these systems are pervasively being introduced to radiology, we believe it becomes imperative to develop dedicated methodologies to enhance the interpretability of A.I. technologies.


    Interpretability methods could help physicians to decide whether they should follow/trust a prediction from an A.I. system. Ultimately, interpretability of A.I. systems is closely linked to safety in healthcare.


    The following poll is meant to collect radiologists’ opinions about methods to enhance the interpretability of A.I. systems developed to assist radiologists.


    https://www.surveymonkey.com/r/interpretableAI


    We thank you in advance for taking 5 minutes to answer this poll. The results of the poll are going to be made publicly available and part of a related publication where this topic will be discussed.


    On behalf of the organisers and supporters of iMIMIC Workshop (Interpretability of Machine Intelligence in Medical Image Computing) 

  • Jeremy Lam

    2018-08-15 08:12:18 Visible by anyone.

    Case of persistent trigeminal artery associated with a cavernous carotid aneurysm. Join the debate- incidental or increased incidence? 

  • Eslam Youssef

    2018-07-13 23:01:37 Visible by anyone.
  • New member:

    Andrew Lowe

    Radiologist United Kingdom, W Yorkshire

    ...

  • Malvika Gulati

    2019-07-11 10:24:59 Visible by anyone.
  • Filipa Vilaverde Abdominal Imaging 11/01/2015

    ABSTRACT Most cases of pancreatoblastoma, a rare malignant epithelial tumor of the pancreas, are seen in the pediatric population. The rarity of pancreatoblastoma, the similar radiologic findings to ...

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  • New member:

    Paggie Kim

    Radiologist United States,

    ...

  • New member:

    Andrew Nguyen

    Medical student United States, NEVADA

    ...

  • New member:

    Jacob Miller

    Radiology resident United States, Florida

    Radiology resident at Aventura Hospital...

  • Nicole Lamparello Interventional Radiology 01/27/2016

    A 41 year-old man presented to our institution for treatment of T7 and T8 compression fractures sustained during an epileptic seizure 3 months prior. Kyphoplasty under general anesthesia was complicat...

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  • Lena Naffaa Musculoskeletal Imaging 03/03/2017

    Image: Sagittal fast spin echo (FSE) proton density (TR/TE [repetition time/echo time, msec], 3000/40) sequential MR images from medial (A) to lateral (D) and corresponding sagittal T2-weighted (4350...

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  • New member:

    Bartosz Pandel

    Technologist Poland, Śląskie

    ...

  • KANIMOZHI DAMODARASAMY Chest & Cardiac Imaging 04/05/2015

    COMPUTED TOMOGRAPHIC IMAGES a, b - axial; c- multiplanar reconstructed images showing: ► - aneurysm component in the groove between aorta and left atrium, « - component of aneurysm dissecting int...

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  • New member:

    Andrea Salina

    Radiology resident Brazil, Ceara

    ...

  • Filip Matijević Interventional Radiology 05/05/2015

    We are presenting a case of subclavian and axillary artery aneurysm, which was successfully treated with a stent graft, only to present 3 months post treatment with symptoms of graft occlusion. We ini...

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  • Mahyar Mohammadifard Neuroradiology 11/02/2016

    68 y/o female...

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  • New member:

    Denise Shafer

    IT professional United States,

    ...

  • Taylor Schwartz Neuroradiology 10/09/2017

    Case Presentation: 31-year-old female with Systemic Lupus Erythematosus presented to the ED after an unwitnessed seizure. Patient was found on the floor in her bathroom unresponsive. She remained alte...

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